CN214530768U - Cast-in-place utility tunnel template bearing structure - Google Patents
Cast-in-place utility tunnel template bearing structure Download PDFInfo
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- CN214530768U CN214530768U CN202023142485.8U CN202023142485U CN214530768U CN 214530768 U CN214530768 U CN 214530768U CN 202023142485 U CN202023142485 U CN 202023142485U CN 214530768 U CN214530768 U CN 214530768U
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Abstract
The utility model provides a template supporting structure of a cast-in-place comprehensive pipe gallery, which relates to the technical field of construction of the comprehensive pipe gallery, and comprises an inner supporting system and an outer supporting system; the inner support system is arranged in the comprehensive pipe rack and used for supporting templates forming the inner wall of the comprehensive pipe rack before the comprehensive pipe rack is poured; the external support system is arranged outside the comprehensive pipe gallery and used for supporting the templates forming the outer wall of the comprehensive pipe gallery before the comprehensive pipe gallery is poured; wherein, the outer support system includes the brick wall, the height of brick wall with utility tunnel's roof flushes for the support is constituteed the template of two lateral walls of utility tunnel. The utility model discloses a brick wall replaces the die carrier that is used for supporting two lateral walls of piping lane to this has realized the unilateral side mode form, has overcome the not enough problem in narrow construction site operation space.
Description
Technical Field
The utility model relates to a utility tunnel construction technical field, concretely relates to cast-in-place utility tunnel template bearing structure.
Background
The utility tunnel is a municipal infrastructure which centralizes gas, water supply, power communication, heat supply and the like in municipal pipelines to implement unified planning, design, construction, management, operation and enclosure, not only solves the problem of urban traffic and promotes the maintenance and operation of municipal services, but also effectively avoids the phenomenon that the urban maintenance underground pipelines repeatedly excavate roads, keeps the integrity of the road surface, is convenient for the laying, maintenance and management of various pipelines, saves space, improves the space utilization rate, reduces the damage of ecological environment and ensures the sustainable development of cities.
The utility tunnel has become one of the important contents of city infrastructure construction, and the construction of present cast-in-place utility tunnel mainly adopts the form of "fastener formula steel pipe scaffold adds the wood pattern" because it installs and removes convenience, sparingly economy. However, for the comprehensive pipe gallery with extremely narrow construction space, the form of 'fastener type steel pipe scaffold and wood formwork' is adopted for construction, and the formwork cannot be erected outside the pipe gallery. And the pipeline is laid along the road more, is located the intensive place of stream of people, and too much road space is also occupied to the mode of setting up of pipe support, and construction period is longer, influences pedestrian's vehicle's normal traffic.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cast-in-place utility tunnel template bearing structure adopts the unilateral side mode form to be under construction, can overcome above technical problem.
In order to solve the problem, the utility model discloses a cast-in-place utility tunnel template bearing structure, include:
an inner support system and an outer support system;
the inner support system is arranged in the comprehensive pipe rack and used for supporting templates forming the inner wall of the comprehensive pipe rack before the comprehensive pipe rack is poured;
the external support system is arranged outside the comprehensive pipe gallery and used for supporting the templates forming the outer wall of the comprehensive pipe gallery before the comprehensive pipe gallery is poured;
wherein, the outer support system includes the brick wall, the height of brick wall with utility tunnel's roof flushes for the support is constituteed the template of two lateral walls of utility tunnel.
In an embodiment of the present invention, the inner support system includes: longitudinal wall template support system, roof template support system and scute, wherein:
the longitudinal wall formwork support system is used for supporting the formwork forming the inner side wall of the comprehensive pipe gallery;
the top plate template supporting system is used for supporting templates forming the top of the inner wall of the comprehensive pipe gallery;
and the angle plate is used for connecting the longitudinal wall formwork supporting system with the top plate formwork supporting system.
The utility model discloses an embodiment, longitudinal wall formwork support system includes:
the longitudinal wall bamboo plywood is arranged in a manner of being tightly attached to the formwork forming the inner side wall of the comprehensive pipe gallery;
the main longitudinal wall keels are longitudinally arranged, one side surface of each main longitudinal wall keel is connected with the bamboo plywood of the longitudinal wall, the other side surface of each main longitudinal wall keel is provided with a plurality of secondary longitudinal wall keels arranged in the vertical direction, and the secondary longitudinal wall keels are perpendicular to the main longitudinal wall keels;
the T-shaped bolts are arranged on the side wall of the comprehensive pipe gallery and are used for penetrating through the longitudinal wall bamboo plywood and the longitudinal wall main keel, one end of each T-shaped bolt is connected with a template forming the inner side wall of the comprehensive pipe gallery, and the other end of each T-shaped bolt is connected with the longitudinal wall secondary keel;
the transverse supports are arranged from bottom to top along the longitudinal direction, two ends of each transverse support are connected with the longitudinal wall secondary keel through adjustable support supports, and the arrangement density of the transverse supports at the upper part is greater than that of the transverse supports at the lower part;
one end of each cross brace is connected with the longitudinal wall secondary keel which is positioned at the uppermost end and connected with the transverse support, and the other end of each cross brace is connected with a template forming the bottom plate in the comprehensive pipe gallery;
the utility model discloses a utility tunnel, including utility tunnel, bracing, the one end of bracing with vertically upwards count the second along horizontal support is connected the vertical wall secondary joist is connected, the other end with constitute the template of utility tunnel infrabasal plate is connected.
In an embodiment of the present invention, a plurality of cabins are disposed in the utility tunnel; the vertical wall formwork support system further comprises:
a plurality of split bolts set up in on the both sides wall between the adjacent cabin of utility tunnel, be used for running through hug closely the both sides wall indulge wall bamboo plywood with indulge wall main joist, its both ends respectively with install in two of adjacent cabin inside wall indulge wall secondary joist and connect.
In an embodiment of the present invention, the top plate formwork support system includes:
the top plate bamboo plywood is arranged in a manner of being tightly attached to the template forming the top plate in the comprehensive pipe gallery;
the top plate main keels are arranged in the transverse direction, one side face of each top plate main keel is connected with the top plate bamboo plywood, the other side face of each top plate main keel is provided with a plurality of top plate secondary keels arranged in the longitudinal direction, and the top plate secondary keels are perpendicular to the top plate main keels;
support the pole setting, many support the pole setting along vertical direction setting, the top of supporting the pole setting through adjustable brace with roof secondary joist connects, the bottom through adjustable brace with constitute the template of utility tunnel infrabasal plate is connected.
The utility model discloses an embodiment, longitudinal wall formwork support system still includes:
the concrete structure blocks are placed on built-in reinforcing steel bars along a direction perpendicular to the brick walls, and the built-in reinforcing steel bars are positioned between the templates forming the inner side wall of the comprehensive pipe gallery and the templates forming the outer side wall of the comprehensive pipe gallery and between the two templates forming the inner side wall of the adjacent cabin of the comprehensive pipe gallery;
and the concrete structure block is provided with a limiting groove, and the inner diameter of the limiting groove is matched with the outer diameter of the built-in steel bar.
In an embodiment of the present invention, the outer support system further includes:
the concrete cushion, with the bottom of brick wall is connected, is used for supporting the constitution the template of utility tunnel outer bottom plate.
The utility model discloses an in the embodiment, utility tunnel divides twice to pour when utility tunnel reaches the first high department of concreting, bearing structure still includes:
the stagnant water steel sheet, the stagnant water steel sheet is located and constitutes the template of utility tunnel inside wall with constitute central point between the template of utility tunnel lateral wall puts.
The utility model discloses a following advantage:
in the utility model, the supporting structure comprises an inner supporting system and an outer supporting system; the inner support system is arranged in the comprehensive pipe rack and used for supporting templates forming the inner wall of the comprehensive pipe rack before the comprehensive pipe rack is poured; the external support system is arranged outside the comprehensive pipe gallery and used for supporting the templates forming the outer wall of the comprehensive pipe gallery before the comprehensive pipe gallery is poured; the outer support system comprises a brick wall, the height of the brick wall is flush with the top plate of the comprehensive pipe gallery, and the brick wall is used for supporting templates forming two outer side walls of the comprehensive pipe gallery; the utility model discloses a brick wall replaces the die carrier that is used for two lateral walls of support piping lane, single side die form has been realized with this, one has solved the not enough problem in narrow construction site operation space, secondly the later stage need not be to backfill between utility tunnel outer wall and the foundation ditch again, the construction is simple, this is to the construction of the utility tunnel in narrow space, it is a big progress of showing, the back of pouring of having accomplished utility tunnel among the prior art has been solved, need backfill a large amount of soil between utility tunnel outer wall and the foundation ditch, and between the two because too narrow be not convenient for backfill soil and too high to the technology of backfill soil (the backfill soil needs backfill compact, prevent the landslide, so technological requirement is higher), the higher scheduling problem of cost.
The utility model discloses place the concrete structure piece on the built-in steel bar structure of utility tunnel, can prevent to the tension bolt tight and the adjustable brace in lateral bracing both ends and adjust the overlength and lead to the problem that each wall both sides longitudinal wall bamboo plywood interval of piping lane is less than piping lane wall design width, can effectively guarantee piping lane construction quality.
The utility model discloses in, the setting mode of horizontal support, bridging, bracing etc. and divide twice method of pouring can guarantee utility tunnel waterproof performance, can reduce cast in situ concrete expand the mould and cause the problem that piping lane wall surface unevenness, warp too big even and influence engineering quality again.
The utility model discloses in, each part size of template support system is little, and the material turnover is convenient to directly transport the job site after mill's processing is accomplished, the field work volume is few, the on-the-spot safe civilized management of being convenient for.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional structure view of a cast-in-place utility tunnel formwork support structure of the present invention;
figure 2 is a schematic view of the utility model of figure 1;
figure 3 is a functional schematic diagram of the utility model utility tunnel cabin;
fig. 4 is a schematic structural diagram of the concrete structural block of the present invention.
Description of reference numerals:
1-longitudinal wall bamboo plywood; 2-main keel of longitudinal wall; 3-longitudinal wall secondary keel; 4-concrete structural blocks; 5-T bolt; 6-split bolts; 7-transverse support; 8-a cross brace; 9-inclined strut; 10-adjustable support; 11-roof secondary joist; 12-supporting vertical rods; 13-brick wall; 14-corner panels; 15-water stop steel plate; 16-concrete bedding; 17-top board bamboo plywood; 18-roof main runners; 19-a limit groove;
a-the inner wall of the comprehensive pipe rack; b-the outer wall of the comprehensive pipe gallery.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a cast-in-place utility tunnel formwork support structure which optimizes the traditional support system effectively, and can replace the formwork used for supporting the two outer side walls of the pipe gallery in the limited space by adopting brick walls 13, thereby realizing the form of single side formwork, solving the problem of insufficient operation space of the narrow construction site, and not refilling soil between the outer wall of the utility tunnel and the foundation pit in the later period, which is a significant progress for the construction of the utility tunnel in the narrow space, and solving the problems that the pouring of the utility tunnel is completed in the prior art, a large amount of soil needs to be refilled between the outer wall of the utility tunnel and the foundation pit, and the problem that the refilling soil is inconvenient and the process of the refilling soil is too high (the refilling soil needs to be tightly refilled, preventing collapse, so the process requirement is higher), the cost is higher and the like.
Referring to fig. 1, showing the utility model relates to a cast-in-place utility tunnel template bearing structure's section structure schematic diagram, this bearing structure can include:
an inner support system and an outer support system;
the inner support system is arranged in the comprehensive pipe rack and used for supporting the templates forming the inner wall of the comprehensive pipe rack before the comprehensive pipe rack is poured;
the outer support system is arranged outside the comprehensive pipe rack and used for supporting the templates forming the outer wall of the comprehensive pipe rack before the comprehensive pipe rack is poured;
wherein, outer support system includes brick wall 13, and the height of brick wall 13 flushes with utility tunnel's roof for support the template of constituteing two lateral walls of utility tunnel.
With regard to the explanation of the specific terms of the utility tunnel, the present invention is not described herein in great detail, but can be described with reference to the prior art. Referring to fig. 2, showing the utility model discloses utility tunnel schematic diagram in fig. 1, arrow a indicates the inner wall of utility tunnel in fig. 2, and arrow B indicates the outer wall of utility tunnel, carries out the position by the template on this inner wall and the outer wall and limits, and the distance between two adjacent templates represents the wall thickness of this utility tunnel. In practice, different compartments may be provided in the utility tunnel, which comprises a utility compartment and a natural gas compartment, as shown in fig. 3.
The outer support system comprises a brick wall 13, which brick wall 13 may be a 240mm thick plastered brick wall 13.
The utility model discloses though still adopt the mode of setting up of die carrier in utility tunnel inboard, but consider that utility tunnel belongs to underground works, roof and wall body are all thicker, and waterproof performance requires highly, and roof and wall body must be pour disposable completion in succession, cause cast in situ concrete expand mould phenomenon very easily like this, then influence the structural appearance gently, then influence engineering construction quality, safety and durability scheduling problem heavily, the utility model provides an interior support system also is different with prior art. Specifically, the internal support system comprises: longitudinal wall template support system, roof template support system and scute 14, wherein: the longitudinal wall formwork support system is used for supporting the formworks forming the inner side wall of the comprehensive pipe gallery; the top plate template supporting system is used for supporting the templates forming the top of the inner wall of the comprehensive pipe gallery; and corner panels 14 for connecting the vertical wall formwork support system and the roof formwork support system.
The utility model discloses an embodiment, vertical wall formwork support system includes: the longitudinal wall bamboo plywood 1 is arranged in a manner of being tightly attached to the formwork forming the inner side wall of the comprehensive pipe gallery; the vertical wall main keel 2 is longitudinally arranged, one side surface of the vertical wall main keel 2 is connected with the vertical wall bamboo plywood 1, the other side surface of the vertical wall main keel 2 is provided with a plurality of vertical wall secondary keels 3 arranged along the vertical direction, and the vertical wall secondary keels 3 are perpendicular to the vertical wall main keel 2; the T-shaped bolts 5 are arranged on the side wall of the comprehensive pipe gallery and are used for penetrating through the longitudinal wall bamboo plywood 1 and the longitudinal wall main keels 2, one end of each T-shaped bolt is connected with a template forming the inner side wall of the comprehensive pipe gallery, and the other end of each T-shaped bolt is connected with the longitudinal wall secondary keel 3; the transverse supports 7 are arranged along the longitudinal direction from bottom to top, two ends of each transverse support 7 are connected with the longitudinal wall secondary keel 3 through adjustable support struts 10, and the arrangement density of the upper transverse supports 7 is greater than that of the lower transverse supports 7; one end of each shear brace 8 is connected with the longitudinal wall secondary keel 3 connected with the transverse support 7 positioned at the uppermost end, and the other end of each shear brace 8 is connected with a template forming the bottom plate in the comprehensive pipe gallery; bracing 9, the one end of bracing 9 is connected with vertical wall secondary joist 3 of following the vertical second of upwards counting 7 connections of horizontal support, and the other end is connected with the template of constituteing utility tunnel infrabasal plate.
The bamboo plywood is a building material which is formed by using a moso bamboo material as a main framework and a filling material and performing high-pressure blank forming. Because bamboo offset plate hardness is high, anti book, resistance to compression, the utility model discloses a bamboo offset plate (including vertical wall bamboo offset plate 1 and roof bamboo offset plate) replaces the steel form, has effectively reduced bearing structure's cost, and its dismouting is also more convenient.
Many indulge wall main joist 2 along vertical setting, and many indulge wall main joist 2 along utility tunnel's pipeline laying direction parallel arrangement promptly, two piece adjacent indulge the interval between the wall main joist 2 and can set up to 200mm, it can be wood purlin to indulge wall main joist 2.
Many longitudinal wall secondary joist 3 set up along vertical direction, and 3 foundation ditch depth directions of many longitudinal wall secondary joist are from up setting down promptly, and interval between two adjacent longitudinal wall secondary joist 3 can set up to 450mm, longitudinal wall secondary joist 3 can be double-rack pipe.
The T-shaped bolt 5 comprises a bolt rod and a transverse support 7 head, wherein the bolt rod and the transverse support 7 head are perpendicular to each other. All be provided with the mounting hole on vertical wall bamboo plywood 1, vertical wall main joist 2 and the vertical wall secondary joist 3, this mounting hole and T type bolt 5's shank of bolt external diameter phase-match. Be provided with built-in reinforcing bar in the utility tunnel wall, built-in reinforcing bar is located the constitution promptly the template of utility tunnel inside wall with constitute between the template of utility tunnel lateral wall to it is fixed respectively with these two templates. During the connection, the shank of the bolt of T type bolt 5 passes vertical wall secondary joist 3, vertical wall main joist 2, vertical wall bamboo plywood 1 in proper order and constitutes the template connection of utility tunnel inside wall, and 7 horizontal supports of T type bolt 5 then block at the surface of vertical wall secondary joist 3 to this has realized vertical wall secondary joist 3, vertical wall main joist 2 and vertical wall bamboo plywood 1 and the fixed of the template of constituteing the utility tunnel inside wall, in order to support this template. About T type bolt 5's shank of bolt and the connected mode of the template of constituteing utility tunnel inside wall the utility model discloses do not limit here, both accessible spiro union, welding, joint etc..
In fact, because utility tunnel has the take the altitude, expand the mould and lead to expanding the mould to protruding in the utility tunnel cabin for avoiding cast in situ concrete, occupy utility tunnel cabin space and influence the problem of overall structure stability, the utility model discloses still be provided with transverse bracing 7, bridging 8 and bracing 9.
Wherein, multichannel horizontal braces 7 sets up from bottom to top along vertical, and the both ends of every horizontal brace 7 are connected with its longitudinal wall secondary joist 3 that is located same water flat line through adjustable brace 10, provide 7 power of horizontal brace for utility tunnel's inside wall. Because the concrete expands mould phenomenon and takes place in utility tunnel's well upper portion more, consequently, the utility model discloses when laying multichannel lateral bracing 7, set up laying density that laying density of upper portion lateral bracing 7 is greater than laying density of lower part lateral bracing 7. As shown in fig. 1, five transverse supports 7 are counted from bottom to top on the same cross section, the step pitch of the first, second and third transverse supports 7 is 1200mm, and the step pitch of the fourth and fifth transverse supports 7 is 1500 mm. For convenient disassembly, the utility model discloses a both ends of horizontal support 7 are passed through adjustable brace 10 and are pushed up on vertical wall secondary joist 3, and through the length of adjusting adjustable brace 10, can guarantee that horizontal support 7 has horizontal effort to vertical wall secondary joist 3.
Referring to fig. 1, bridging 8 adopts two bracing piece cross connection to form, is similar to the scissors, provides the space holding power for utility tunnel's inside wall, maintains the stability in utility tunnel cabin. The upper end of bridging 8 is connected with the vertical wall secondary joist 3 that is located the top, and the lower extreme top is on the template of constituteing utility tunnel infrabasal plate. The longitudinal step between the upper and lower ends of the scissor supports 8 may be 2000 mm.
Referring to fig. 1, form a stable triangular space between bracing 9 and utility tunnel's the inside wall, can effectively increase the rigidity of structure and increase the shock resistance of structure. The longitudinal step between the upper end of the diagonal brace 9 and the formwork that makes up the floor in the utility tunnel may be 1200 mm.
As shown in fig. 1 to 3, in an embodiment of the present invention, a plurality of cabins may be disposed in the utility tunnel; therefore, the utility model discloses a vertical wall template support system can also include: a plurality of split bolts 6 set up on the both sides wall between the adjacent cabin of utility tunnel for run through the vertical wall bamboo plywood 1 and the vertical wall main joist 2 of hugging closely the both sides wall, its both ends are connected with two vertical wall secondary joist 3 of installing in adjacent cabin inside wall respectively. The utility model discloses in, to the setting of stay bolt 6, can guarantee the stability between two adjacent cabins. The T-shaped bolt 5 and the split bolt 6 can adopt a water stop bolt.
The utility model discloses an in the embodiment, vertical wall formwork support system still includes: the concrete structure blocks 4 are placed on the built-in reinforcing steel bars along the direction perpendicular to the brick wall 13, and the built-in reinforcing steel bars are positioned between the templates forming the inner side wall of the comprehensive pipe gallery and the templates forming the outer side wall of the comprehensive pipe gallery and between the two templates forming the inner side wall of the adjacent cabin of the comprehensive pipe gallery; wherein, the concrete structure block 4 is provided with a limiting groove 19, and the inner diameter of the limiting groove 19 is matched with the outer diameter of the built-in steel bar (not shown).
In fig. 1, each concrete structure block 4 is represented by a line, and the present invention is provided with a plurality of concrete structure blocks 4 along the longitudinal direction. Referring to fig. 4, showing the utility model discloses concrete structure piece 4's structural schematic, can see from this fig. 4 that the concrete that pours between concrete structure piece 4's the filling shadow and utility tunnel's the template is same material to make the utility tunnel's after the shaping material all have the homogeneity, be favorable to maintaining its bulk strength. The setting of spacing groove 19 can guarantee the stability after concrete structure piece 4 installs.
The utility model discloses a horizontal effort can be applyed to the template of constituteing the utility tunnel inside wall and the template of constituteing the utility tunnel lateral wall to a plurality of concrete structure pieces 4, can avoid the template of constituteing the utility tunnel inside wall toward the deformation that is close to brick wall 13 directions, is favorable to keeping the homogeneity of utility tunnel lateral wall thickness. A plurality of concrete structure pieces 4 that are located between two templates that constitute the adjacent cabin inside wall of utility tunnel can apply transverse force to two templates that constitute the adjacent cabin inside wall of utility tunnel, can avoid the process between two adjacent cabins to be close to, inhomogeneous between the wall thickness, influence the problem of cabin overall stability.
In an embodiment of the present invention, referring to fig. 1, the top plate formwork support system includes: the top plate bamboo plywood 17 is arranged close to the template forming the top plate in the comprehensive pipe gallery; the top plate main keels 18 are transversely arranged, one side face of each top plate main keel 18 is connected with a top plate bamboo rubber plate 17, the other side face of each top plate main keel 18 is provided with a plurality of top plate secondary keels 11 arranged in the longitudinal direction, and the top plate secondary keels 11 are perpendicular to the top plate main keels 18; support pole setting 12, many support pole settings 12 set up along vertical direction, and the top of supporting pole setting 12 is connected with roof secondary joist 11 through adjustable brace 10, and the bottom is connected with the template of constituteing the utility tunnel infrabasal plate through adjustable brace 10.
Many roof main joist 18 are along horizontal setting, and many roof main joist 18 are evenly laid according to predetermineeing the interval and are just parallel to each other between two inside walls of utility tunnel promptly, and the interval between two adjacent roof main joist 18 can set up less into 200mm to guarantee to form the outrigger to the template of constituteing the utility tunnel roof.
Many roof secondary joist 11 set up along longitudinal direction, and many roof secondary joist 11 are along utility tunnel's pipeline laying direction parallel arrangement promptly, and roof secondary joist 11 is perpendicular with utility tunnel's inside wall. The distance between two adjacent top plate secondary keels 11 can be set to 900mm, and the top plate secondary keels 11 can be wood purlins.
For the convenience of disassembly, the top end of the supporting upright rod 12 is supported on the top plate secondary keel 11 through the adjustable support 10, the bottom end of the supporting upright rod is supported on the templates forming the bottom plate in the utility tunnel through the adjustable support 10, and the supporting upright rod 12 can be guaranteed to have a longitudinal acting force on the top plate secondary keel 11 through adjusting the length of the adjustable support 10, so that the top plate bamboo plywood 17 is tightly connected with the templates forming the top plate in the utility tunnel.
During specific connection, the angle plate 14 is respectively fixed with the longitudinal wall bamboo plywood 1 and the top plate bamboo plywood 17, no gap is required at a contact part during connection, and leakage of cast-in-place concrete is avoided.
In an embodiment of the present invention, the outer supporting system further includes: and the concrete cushion 16 is connected with the bottom end of the brick wall 13 and used for supporting the templates forming the outer bottom plate of the comprehensive pipe gallery. Referring to fig. 1, concrete cushion 16 with the utility model discloses a concrete that pours between concrete structure piece 4 and utility tunnel's the template is same material to guarantee that the utility tunnel's after the shaping material all has the homogeneity, be favorable to maintaining its bulk strength.
The utility model relates to an embodiment, for preventing under the unilateral formwork circumstances, once only pour the concrete height and take place serious bulging problem, guarantee whole piping lane waterproof performance again, whole utility tunnel divides twice to pour, when utility tunnel reaches the first concrete height department of pouring, bearing structure still includes: stagnant water steel sheet 15, stagnant water steel sheet 15 are located the central point between the template of constituteing the utility tunnel inside wall and the template of constituteing the utility tunnel lateral wall and put. The water stop steel plate 15 is welded on a built-in steel bar (not shown) in the wall of the comprehensive pipe gallery and can be used for water prevention. As for the waterproof function and the placement of the waterproof steel plate 15, the present invention is not described herein, and reference may be made to the description of the prior art.
Next, the installation method of the cast-in-place utility tunnel formwork support structure of the present invention is explained, including the following steps:
firstly, excavating a foundation pit, performing foundation pit supporting work, finishing foundation treatment, and manufacturing a concrete cushion 16 of a comprehensive pipe gallery;
step two, building brick walls 13 on the outer sides of the pipe gallery in the foundation pit, and plastering the brick walls with concrete, wherein the building height requirement reaches the top plate of the comprehensive pipe gallery;
binding built-in steel bars (not shown) on a bottom plate and a 60cm high wall of the comprehensive pipe gallery, completing corresponding template installation according to a comprehensive pipe gallery formwork distribution diagram, welding water stop steel plates 15 on the built-in steel bars (not shown) at the center positions of all walls of the comprehensive pipe gallery, and pouring concrete; binding the reinforcing steel bars of the longitudinal wall after the strength of the concrete meets the requirements of relevant specifications, placing a concrete structure block 4 in an internal reinforcing steel bar (not shown in the figure), welding T-shaped bolts 5 at corresponding positions of two inner side walls of the comprehensive pipe gallery, punching holes at positions of the bamboo plywood 1 of the longitudinal wall where the T-shaped bolts 5 are installed and opposite-pulling bolts 6, and then installing bamboo plywood; the T-shaped bolt 5 and the split bolt 6 are externally used for reinforcing the longitudinal wall main keel 2 and the longitudinal wall secondary keel 3 on the longitudinal wall bamboo plywood 1;
and step four, installing a supporting vertical rod 12, a transverse support 7, a cross support 8, an inclined support 9, a top plate secondary keel 11, a top plate main keel 18, a top plate bamboo plywood 17 and an angle plate 14, adjusting an adjustable support 10 at two ends of the reinforcing transverse support 7 and an adjustable support 10 at the top of the supporting vertical rod 12, wherein the installation is simultaneously carried out from the bottom of the pipe gallery to the top of the pipe gallery and along the extending direction of the pipe gallery, namely when the supporting vertical rod 12 is installed from bottom to top, the transverse support 7 is installed at a corresponding position, the adjustable supports 10 at two ends are adjusted, and the longitudinal wall bamboo plywood 1 is reinforced. The method specifically comprises the following steps: the top plate secondary keel 11, the top plate main keel 18 and the top plate bamboo plywood 17 are placed on the adjustable support 10 at the top of the support upright stanchion 12, meanwhile, a plurality of support upright stanchions 12 are installed along the extending direction of the pipe gallery, and meanwhile, the cross braces 8 and the inclined braces 9 are installed at corresponding positions.
Accomplish the utility model discloses bearing structure's installation back, with roof reinforcement, be constituteing the template and the constitution of utility tunnel inner wall carry out concrete placement to utility tunnel's longitudinal wall, roof between the template of utility tunnel outer wall, pour and wipe flat slab concrete after accomplishing to installation external mold roof accomplishes pouring to the utility tunnel. And finally, after the concrete of the comprehensive pipe gallery is maintained to the relevant standard requirements, the inner support system is dismantled, sundries on the bamboo plywood 1 of the longitudinal wall and the bamboo plywood 17 of the top plate are cleaned, and the concrete is transported to the construction position of the next comprehensive pipe gallery.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
It is right above to the technical scheme that the utility model provides a detailed introduction has been carried out, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the description of above embodiment is only used for helping to understand the utility model discloses, this description content should not be understood as right the utility model discloses a restriction. For the person skilled in the art, it is also possible to use the invention in a number of different embodiments and applications, without the embodiments being exhaustive, and the obvious changes or modifications which are introduced here are within the scope of the invention.
Claims (8)
1. The utility model provides a cast-in-place utility tunnel template bearing structure which characterized in that includes:
an inner support system and an outer support system;
the inner support system is arranged in the comprehensive pipe rack and used for supporting templates forming the inner wall of the comprehensive pipe rack before the comprehensive pipe rack is poured;
the external support system is arranged outside the comprehensive pipe gallery and used for supporting the templates forming the outer wall of the comprehensive pipe gallery before the comprehensive pipe gallery is poured;
wherein, the outer support system includes brick wall (13), the height of brick wall (13) with utility tunnel's roof flushes for the support constitutes the template of two lateral walls of utility tunnel.
2. The support structure of claim 1, wherein the inner support system comprises: longitudinal wall template support system, roof template support system and scute (14), wherein:
the longitudinal wall formwork support system is used for supporting the formwork forming the inner side wall of the comprehensive pipe gallery;
the top plate template supporting system is used for supporting templates forming the top of the inner wall of the comprehensive pipe gallery;
the corner plate (14) is used for connecting the longitudinal wall formwork supporting system and the roof formwork supporting system.
3. The support structure of claim 2, wherein the vertical wall form support system comprises:
the longitudinal wall bamboo plywood (1) is arranged in a manner of being tightly attached to the formwork forming the inner side wall of the comprehensive pipe gallery;
the bamboo plywood comprises longitudinal wall main keels (2), wherein the longitudinal wall main keels (2) are longitudinally arranged, one side surface of each longitudinal wall main keel (2) is connected with a longitudinal wall bamboo plywood (1), the other side surface of each longitudinal wall main keel is provided with a plurality of longitudinal wall secondary keels (3) which are vertically arranged, and the longitudinal wall secondary keels (3) are perpendicular to the longitudinal wall main keels (2);
the T-shaped bolts (5) are arranged on the side wall of the comprehensive pipe gallery and are used for penetrating through the longitudinal wall bamboo plywood (1) and the longitudinal wall main keels (2), one end of each T-shaped bolt is connected with a template forming the inner side wall of the comprehensive pipe gallery, and the other end of each T-shaped bolt is connected with the longitudinal wall secondary keel (3);
the transverse supports (7) are arranged in a plurality of ways from bottom to top along the longitudinal direction, two ends of each transverse support (7) are connected with the corresponding longitudinal wall secondary keel (3) through an adjustable support (10), and the arrangement density of the transverse supports (7) at the upper part is greater than that of the transverse supports (7) at the lower part;
one end of each scissor support (8) is connected with the longitudinal wall secondary keel (3) which is positioned at the uppermost end and connected with the transverse support (7), and the other end of each scissor support (8) is connected with a template forming the bottom plate in the comprehensive pipe gallery;
bracing (9), the one end of bracing (9) with along vertically upwards count the second way horizontal support (7) are connected vertical wall secondary joist (3) are connected, and the other end and constitution the template of utility tunnel infrabasal plate is connected.
4. The support structure of claim 3, wherein a plurality of compartments are provided within the utility tunnel; the vertical wall formwork support system further comprises:
a plurality of split bolts (6), set up in on the both sides wall between the adjacent cabin of utility tunnel, be used for running through hug closely the both sides wall indulge wall bamboo plywood (1) with indulge wall main joist (2), its both ends respectively with install in two of adjacent cabin inside wall indulge wall secondary joist (3) are connected.
5. The support structure of claim 2, wherein the roof form support system comprises:
the top plate bamboo plywood (17) is arranged in a manner of being tightly attached to the template forming the top plate in the comprehensive pipe gallery;
the top plate main keels (18) are arranged in the transverse direction, one side face of each top plate main keel (18) is connected with the top plate bamboo rubber plate (17), the other side face of each top plate main keel (18) is provided with a plurality of top plate secondary keels (11) arranged in the longitudinal direction, and the top plate secondary keels (11) are perpendicular to the top plate main keels (18);
support pole setting (12), many support pole setting (12) set up along vertical direction, the top of supporting pole setting (12) through adjustable support (10) with roof secondary joist (11) are connected, the bottom through adjustable support (10) with constitute the template of utility tunnel infrabasal plate is connected.
6. The support structure of claim 2 or 4, wherein the vertical wall form support system further comprises:
the concrete structure blocks (4) are placed on built-in reinforcing steel bars along a direction perpendicular to the brick walls (13), and the built-in reinforcing steel bars are positioned between the templates forming the inner side wall of the comprehensive pipe gallery and the templates forming the outer side wall of the comprehensive pipe gallery and between the two templates forming the inner side wall of the adjacent cabin of the comprehensive pipe gallery;
the concrete structure block (4) is provided with a limiting groove (19), and the inner diameter of the limiting groove (19) is matched with the outer diameter of the built-in steel bar.
7. The support structure of claim 1, wherein the outer support system further comprises:
concrete cushion (16), with the bottom of brick wall (13) is connected, is used for supporting the constitution the template of utility tunnel outer bottom plate.
8. The support structure of claim 1, wherein the utility tunnel is cast in two portions, the support structure further comprising, when the utility tunnel reaches a first cast concrete height:
stagnant water steel sheet (15), stagnant water steel sheet (15) are located and constitute the template of utility tunnel inside wall with constitute central point between the template of utility tunnel lateral wall puts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023142485.8U CN214530768U (en) | 2020-12-23 | 2020-12-23 | Cast-in-place utility tunnel template bearing structure |
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| CN202023142485.8U CN214530768U (en) | 2020-12-23 | 2020-12-23 | Cast-in-place utility tunnel template bearing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746628A (en) * | 2020-12-23 | 2021-05-04 | 北京市政路桥股份有限公司 | Cast-in-place comprehensive pipe gallery formwork supporting structure and cast-in-place comprehensive pipe gallery construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746628A (en) * | 2020-12-23 | 2021-05-04 | 北京市政路桥股份有限公司 | Cast-in-place comprehensive pipe gallery formwork supporting structure and cast-in-place comprehensive pipe gallery construction method |
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